JPS6236712B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to an applicator for heating therapy, and particularly to an applicator for heating therapy for heating a predetermined location of a living body using electromagnetic waves. [Conventional technology] In recent years, heating therapy

[Problem that the invention seeks to solve]

However, in such conventional examples, since the whole is integrated, there is a disadvantage that it cannot sufficiently respond to the shape of the biological surface or the width of the contact area, and it is difficult to adapt to various living organisms. However, there is an inconvenience in that a large number of applicators must be prepared in advance. Also, when replacing the applicator,
In addition to the fact that the case body is firmly supported by the support mechanism, there are also problems such as heating of the case body during use, which is troublesome and requires a certain amount of time and labor. [Object of the Invention] The present invention improves the disadvantages of the above-mentioned conventional examples, and in particular, it is possible to very easily adapt to various shapes of the appropriate heating place, and to quickly prepare treatment for the living body. The object of the present invention is to provide an applicator for heating therapy that can perform the following functions. [Means for Solving the Problems] Therefore, in the present invention, a case body is provided which has an electromagnetic wave power feeding section at one end and an opening for transmitting electromagnetic waves at the other end, and the opening in the case body In a heating therapy applicator equipped with a radio wave lens part on the side, the electromagnetic wave power feeding part of the case body is equipped with:
The case body is filled with a dielectric material such as machine oil that has low attenuation of electromagnetic waves, and the case body is divided into two parts, the electromagnetic wave power feeding part side and the radio wave lens part side, and each part is detachably connected to the other part. ,
This aims to achieve the above objective. [Function] By preparing in advance a large number of radio wave lenses and openings with different shapes in consideration of various conditions such as the shape of the living body and the situation of the affected area, heating treatment can be speeded up and treatment efficiency can be increased. Improvements can be made. Furthermore, the therapeutic range can be expanded. In addition, by filling the electromagnetic wave power supply part with a dielectric material such as machine oil, the attenuation of electromagnetic waves is reduced and heat loss is reduced.
Therefore, no heating occurs, making handling easier. [First Embodiment] The first embodiment of the present invention will be described below with reference to FIGS. 1 to 2.
This will be explained based on the diagram. In these figures, 10 indicates a case body, 20 indicates a cooling mechanism, and 50 indicates an electromagnetic wave power supply section. The case body 10 includes a power feeding part waveguide 1
1 and a lens portion waveguide 12. Among these, the feeding section waveguide 11 is equipped with an excitation antenna 13 and a coaxial connector 13A. Therefore, the electromagnetic waves sent through the coaxial connector 13A are efficiently introduced into the case body 10. Further, in the power feeding part waveguide 11, in this embodiment, a machine oil 11 is provided as a dielectric member with low attenuation of electromagnetic waves.
Filled with B. 11A indicates a dielectric plate for sealing the machine oil. This dielectric plate 1
1A is formed of a member with relatively low attenuation of electromagnetic waves. On the other hand, the lens portion waveguide 12 is open at both left and right end views in the figure, and has a radio wave lens portion 1 inside.
6, and an inflow/outflow section 17 for cooling water is provided at the center of the outside as shown in the figure. Among these, the radio wave lens section 16 includes a metal plate 16A having different lengths,
16A, . . . are used, and as shown in FIG. 1, a short metal plate 16A is provided in the center, and long metal plates 16A are provided on the inner wall at equal intervals. Therefore, the electromagnetic waves sent to the radio wave lens section 16 are first gradually divided from the metal plate 16A on the inner wall side, and the radio wave lens section 16 has a matching effect. ing. Further, a dielectric plate 19 having a relatively high dielectric constant and low attenuation is attached to the inner wall of the case body 10 in parallel to the direction E of the electric field of the electromagnetic wave, thereby providing a dielectric plate 19 as shown in FIG. As such, the disadvantage of the conventional example in which radio wave energy is concentrated in the central area has been significantly improved. Furthermore, as shown in the figure, the cooling mechanism 20 includes an abutment support plate 21 made of a dielectric plate curved to fit the living body (see A in FIG. 8), and is fixed to the outside of this abutment support plate 21. The contact plate 22 is made up of a contact plate 22 and a soft film member 23 sealed on the outside of the contact plate 22. Of these,
In the center of the contact support plate 21, there is a square through hole 2 that matches the radiation opening 10A of the case body 10.
As shown in FIG. It has a structure that allows each cooling liquid to flow very naturally. In this embodiment, the cooling liquid used in the cooling mechanism 20 is water (relative permittivity ε _r =80.36; however,
20℃, measurement wavelength ∞) is used. A plurality of cooling water inflow/outflow portions 20A and 20B are each symmetrically provided at the peripheral end of the cooling mechanism 20,
This makes it possible to appropriately select and set the direction in which the cooling water flows. 11F, 1
2F indicates a flange portion for attachment and detachment. In the first embodiment configured in this way, the structure has good impedance matching with little reflection from the excitation antenna 13 to the outer end of the radio wave lens section 16, and therefore, the electromagnetic wave generating means This has the advantage that electromagnetic waves sent from a magnetron or the like can be efficiently transmitted to the outside.In particular, since the power feeding part waveguide 11 is filled with machine oil, the size of the power feeding part waveguide 11 can be reduced. 1/√ _r, that is, approximately 2/3 (however, when the relative dielectric constant of machine oil ε _r ≒ 2.2), the overall size can be reduced. There is an advantage in that it is possible to prepare radio wave lens units equipped with various shapes of cooling mechanisms, etc., and to select the optimum radio wave lens unit corresponding to the treatment area of the living body. [Second Embodiment] Next, a second embodiment will be described based on FIGS. 4 and 5. In this embodiment, the above-mentioned cooling water inflow/outflow portions 17 are disposed at the upper and lower ends of the back center of the contact support plate 21 in FIG. is shortened to reduce the attenuation of electromagnetic waves. That is, the radio wave lens section 32 used includes a plurality of metal plates 32A, 32A, . . . arranged at equal intervals, and the outer metal plate 32A is longer than the inner metal plate 32A. . 33,3
4 indicates a degassing means. This degassing means 33, 34
In this method, a small amount of internal cooling liquid is constantly allowed to flow out from the relevant location, thereby releasing internal air bubbles to the outside. 50 indicates a sealing member. Other configurations are as described above.
It is the same as the example. Even in this case, in addition to having the same effect as the first embodiment described above, the radio wave lens section 32 can be disposed along the curved surface of the contact support plate 21 of the cooling mechanism 20, and therefore, Overall, the overall length of the case body 10 is shortened, and the power feeding part waveguide 1 is
There is an advantage that one portion can be formed long, thereby reducing the attenuation of electromagnetic waves. [Third Embodiment] Next, a third embodiment will be described based on FIGS. 6 and 7. This embodiment is an embodiment in which electromagnetic waves of a relatively high frequency are used, and the width W of the feed portion waveguide 41 portion is larger than that of each of the previously described embodiments.
is formed even smaller, and the radio wave lens portion 4
This is a compact version of 3. In this case, each metal piece 43A, 43A, . . . of the radio wave lens portion 43
are of the same size, and the distance between them is set to become narrower toward the outside. The other configurations are the same as those of the second embodiment described above. Even in this case, in addition to having the same function and effect as the second embodiment described above, the overall size and weight can be reduced in response to high frequency electromagnetic waves, and therefore it is easier to handle. It has the advantage of speeding up treatment. In addition, in each of the above embodiments, the electromagnetic wave power supply section 1
Although the case where the machine oil 11B is used as the dielectric member filled in the dielectric members 1 and 41 has been exemplified, the present invention is not necessarily limited to this. It's okay. [Effects of the Invention] Since the present invention is configured and functions as described above,
According to this, by preparing electromagnetic wave transmitting sections of various shapes in advance, it is possible to always select and equip the optimal one according to the shape of the biological surface and the depth of the heating section, and machine oil, etc. The purpose of the present invention is to provide an unprecedented and excellent applicator for heating therapy, which suppresses overheating of the case body by the action of the dielectric member, and is easy to handle and can provide rapid treatment to living organisms. can.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing one embodiment of the present invention, and FIG.
The figure is a front view of Figure 1, Figures 3 1 and 2 are explanatory diagrams showing the action of the dielectric plates installed on the inner wall of the case body, Figure 4 is a front view of the second embodiment, and Figure 5 is a cross-sectional view taken along the - line in Fig. 4, and Fig. 6 is a sectional view taken along the - line in Fig. 4.
A front view showing the embodiment, FIG. 7 is a sectional view taken along the line - in FIG. 6, and FIG. 8 is a perspective view showing the conventional example.
FIG. 9 is an explanatory diagram showing the radio wave lens section installed in FIG. 8, and FIGS. 10 and 11 are explanatory diagrams of the operation of FIG. 9, respectively. 10... Case body, 11, 41... Power feeding part waveguide forming an electromagnetic wave feeding part, 16, 32, 43
...Radio wave lens section, 50...Electromagnetic wave power supply section.

Claims (1)

[Claims] 1. A case body having an electromagnetic wave feeding section at one end and an opening for transmitting electromagnetic waves at the other end is provided, and a radio wave lens section is provided on the side of the opening in the case body. In the applicator for heating therapy, the electromagnetic wave power supply section of the case body is filled with a dielectric material such as machine oil that has low attenuation of electromagnetic waves, and the case body is connected to the electromagnetic wave power supply section side and the radio wave lens section side. An applicator for heating therapy characterized by being divided into two parts and each part being detachably connected to each other.